Rough idle (high then low RPMs) and surges or lurches when coasting. Hood wont open

VR6 DRIVER

MEMBER
1995 VOLKSWAGEN GTI
193,000 MILES

My 95 GTI VR6 has about 60k on engine and 193 on tranny/car. It starts up great, but sometimes idles up and down in rpms while sitting still. It drives okay in lower speeds and shifts smoothly, but when I let off gas to coast, it lurches. When I push on the gas or depress the clutch, it goes away. Happens in 1st, 2nd, 3rd. I have only had the car for a few months and dont drive it much, but it didnt do that the first few weeks (it wasnt 90 to 100 degrees then either, in case thats a factor.) Everything else seems to be working fine. My thoughts go to a bad ECM / ECU, a leak in vacuum somewhere, or some Idle control valve, etc. Unfortunately, the hood cable is broken and cant get into engine to take a look.

8 Replies

HMAC300

MECHANIC
48,601 POSTS

Try cleaning the throttle plate on both sides with chokeor fuel injector spray clener. Wipe it all out if you cansee if that helps.

Was this

answer

helpful?

Yes

Thursday, August 16th, 2012 AT 11:00 PM

VR6 DRIVER

MEMBER
5 POSTS

Thanks, I will try that. Not exactly sure where that is, but can figure it out most likely. I finally got the hood to unlatch. I also found that the hose leading into the air filter box is cracked open. Could this be part of the problem (even though its not cold outside) I will replace it too.